FLEXURAL-TORSIONAL POSTBUCKLING ANALYSIS OF CENTRALLY COMPRESSED BARSWITH OPEN THIN-WALLED CROSS-SECTION

Authors
IOANNIDIS GI KOUNADIS AN
Citation
Gi. Ioannidis et An. Kounadis, FLEXURAL-TORSIONAL POSTBUCKLING ANALYSIS OF CENTRALLY COMPRESSED BARSWITH OPEN THIN-WALLED CROSS-SECTION, Engineering structures, 21(1), 1999, pp. 55-61
Citations number
12
Categorie Soggetti
Engineering, Civil
Journal title
Engineering structures → ACNP
ISSN journal
01410296
Volume
21
Issue
1
Year of publication
1999
Pages
55 - 61
Database
ISI
SICI code
0141-0296(1999)21:1<55:FPAOCC>2.0.ZU;2-G
Abstract
In this paper the postbuckling behaviour of simply-supported bars with uniform, open thin-walled cross-sections subjected to a centrally app lied compressive load is examined. The analysis refers to sections for which the centroid does not coincide with the shear center. Hence the bars lose their stability through simultaneous bending and torsion. T he proposed method is applied to the specific case of an equal leg ang le for which numerical results for the critical (elastic) load are ava ilable. (C) 1997 Elsevier Science Ltd.